CN212687954U - Curved screen protection film - Google Patents

Abstract

The embodiment of the application provides a curved screen protective film which comprises a protective layer, an adhesive layer, a planar release layer and an arc edge release layer, wherein the adhesive layer comprises a first bonding surface and a second bonding surface which are deviated from each other; the protective layer is arranged on the first bonding surface; the plane is from type layer and arc limit to set up in the second face of bonding from the type layer, and the arc limit is from type layer and plane from type layer concatenation to around the plane from the edge setting on type layer, the arc limit is equipped with the plane from type layer from the type layer and peels off the opening. The curved surface screen protection film that this application embodiment provided can tear the plane from type layer through the plane and paste the protective layer from type layer stripping opening, if bad phenomena such as gassing, fold can laminate again, until there is not laminating bad phenomenon to can avoid the protective layer to produce the problem of bubble easily in the arc limit position of curved surface screen.

Description

Curved screen protection film

Technical Field

The application relates to the technical field of protective films, in particular to a curved-surface screen protective film.

Background

In the use process of electronic products such as mobile phones, tablet computers, smart watches and the like, the display screen is easily scratched. For this reason, a protective film is required to be attached to the display screen for protecting the display screen. With the continuous development of science and technology, curved screens are more and more widely applied. However, when the protective film in the related art is attached to the curved screen, bubbles are likely to be generated in the arc-shaped portion of the curved screen, and the protective film is difficult to tear and attach again after the bubbles are generated, which is very likely to cause poor attachment.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a curved surface screen protection film to solve above-mentioned problem. The present application achieves the above object by the following technical solutions.

The embodiment of the application provides a curved screen protective film which comprises a protective layer, an adhesive layer, a planar release layer and an arc edge release layer, wherein the adhesive layer comprises a first bonding surface and a second bonding surface which are deviated from each other; the protective layer is arranged on the first bonding surface; the plane is from type layer and arc limit to set up in the second face of bonding from the type layer, and the arc limit is from type layer and plane from type layer concatenation to around the plane from the edge setting on type layer, the arc limit is equipped with the plane from type layer from the type layer and peels off the opening.

In an embodiment, the arc limit is from the type layer including around the plane from the first arc limit that the edge of type layer set gradually from the type sublayer, connect from type sublayer and second arc limit from the type sublayer, the plane is peeled off the type layer and is located first arc limit from type sublayer and second arc limit from between the type sublayer and with be connected from type sublayer relative setting.

In one embodiment, the connecting release sub-layer, the first arc edge release sub-layer and the second arc edge release sub-layer are integrally formed.

In one embodiment, the connection release sub-layer is respectively spliced with the first arc edge release sub-layer and the second arc edge release sub-layer.

In one embodiment, the curved screen protection film further comprises a pull strip, the planar release layer comprises a first end and a second end which are opposite, the first end faces the planar release layer stripping opening, and the pull strip is connected to the first end through the planar release layer stripping opening; alternatively, the pull strip is connected to the second end.

In one embodiment, the brace extends from a first end to a second end and is stacked from the planar release; or the pull strip extends from the second end to the first end and is stacked with the plane in a release manner.

In one embodiment, the pull strip comprises a dust-binding surface arranged opposite to the plane release layer, the curved screen protection film further comprises a pull strip release layer, and the pull strip release layer is arranged on the dust-binding surface.

In one embodiment, the orthographic projection of the riblets is located within the confines of the planar release layer; or the orthographic projection of the brace covers the plane release layer and the arc edge release layer.

In one embodiment, the curved screen protective film further comprises a positioning layer, wherein the positioning layer is attached to one side of the protective layer, which is far away from the adhesive layer; the locating layer includes the bulge, and the bulge is provided with the locating hole, and the orthographic projection of locating hole falls outside the protection layer.

In one embodiment, the curved screen protective film further comprises a plurality of labels, and the plurality of labels are respectively connected with the planar release layer and the arc edge release layer.

Compared with the prior art, the curved surface screen protection film that this application embodiment provided includes the protective layer and laminates in the plane of protective layer from type layer and arc limit from type layer, and the arc limit is around the edge setting on type layer from type layer on the plane from type layer, and be equipped with the plane and peel off the opening from type layer, when pasting curved surface screen protection film, can peel off the opening through the plane earlier and tear the plane from type layer and paste the protective layer from type layer, if produce bad phenomena such as bubble, fold, can laminate again, until there is not laminating bad phenomenon. After the protective layer of the middle part is pasted, the arc edge is gradually torn off from the release layer, and the protective layer of the edge part is pasted, so that the problem that bubbles are easily generated at the arc edge of the curved screen by the protective layer can be avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is an exploded schematic view of a curved screen protective film provided in an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of a curved screen protective film and a curved screen provided in an embodiment of the present application.

FIG. 3 is a schematic cross-sectional view of a curved screen protective film according to another embodiment of the present application.

Fig. 4 is a schematic view illustrating the attachment of a curved-surface screen protective film provided in the related art.

FIG. 5 is a schematic view of a curved screen protective film according to another embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a planar release layer and an arc edge release layer according to an embodiment of the present application.

FIG. 7 is another schematic cross-sectional view of a curved screen protective film according to an embodiment of the present disclosure.

Fig. 8 is another exploded view of the improved curved screen protective film of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and fig. 2, the curved-surface screen protection film 100 includes a protection layer 110, a planar release layer 120, an arc-edge release layer 130 and an adhesive layer 140, the adhesive layer 140 includes a first adhesive surface 141 and a second adhesive surface 142 which deviate from each other, the protection layer 110 is disposed on the first adhesive surface 141, the planar release layer 120 and the arc-edge release layer 130 are disposed on the second adhesive surface 142, the arc-edge release layer 130 is spliced with the planar release layer 120 and disposed around the edge of the planar release layer 120, and the arc-edge release layer 130 is further disposed with a planar release layer peeling opening 131.

The arc edge release layer 130 and the planar release layer 120 are disposed on the second bonding surface 142, and are used for protecting the second bonding surface 142 and protecting the second bonding surface 142 from contamination. After tearing the planar release layer 120 and the arc edge release layer 130, the protective layer 110 can be adhered to the screen through the second adhesive surface 142, so as to protect the screen.

The arc edge release layer 130 is spliced with the planar release layer 120, wherein the splicing refers to the matching with a gap (including a minimum gap equal to zero) to prevent impurities such as dust from entering the second bonding surface 142, and to facilitate the separation of the arc edge release layer 130 and the planar release layer 120.

The curved screen protection film 100 may be applied to a curved screen 200, and the curved screen 200 may include a planar portion 210 and an arc portion 220, the arc portion 220 being provided at an edge of the planar portion 210. The curved screen 200 may be a hyperboloid display screen, a three-curved display screen, a four-curved display screen, and so on. The planar release layer 120 may be adapted to the planar portion 210, and the arc-edge release layer 130 may be adapted to the arc-edge portion 220.

When the curved-surface screen protection film 100 is adhered, the planar release layer 120 can be firstly torn through the planar release layer peeling opening 131, the exposed area of the protection layer 110 is a planar adhesion area, and the planar adhesion area can be adhered to the planar portion 210 after being aligned with the rear planar portion 210. If the bonding effect is not good, the protection layer 110 can be torn off and bonded again until no bad bonding phenomenon occurs, such as bubbles appearing between the protection layer 110 and the curved screen 200. After the isoplanar bonding area is pasted, the arc edge release layer 130 is torn off, and the rest part of the protective layer 110 is pasted on the arc edge part 220, so that the problem that bubbles are easily generated at the arc edge position when the protective film in the related art is pasted on a curved screen can be avoided. Meanwhile, the protective layer 110 is attached to the curved screen 200 in sections, and the problem of bubbles is not easily generated at the arc edge position of the curved screen 200.

The protective layer 110 may be made of transparent glass, ground glass, acrylic, which is also called organic glass, is a polymer material with high plasticity, and has the advantages of good transparency, high chemical stability, easy processing, etc. The Adhesive layer 140 may be made of an OCA (Optically Clear Adhesive, OCA optical Adhesive) optical Adhesive, a double-sided Adhesive tape, or the like, and has a double-sided Adhesive effect, so as to provide a suitable Adhesive force, facilitate the adhesion of the protective layer 110 on the surface of the screen, and ensure that the screen is not damaged when the protective layer is taken down. As an example, the protection layer 110 is made of an acrylic material, and the adhesive layer 140 is made of OCA optical adhesive.

The thickness of the protective layer 110 may be 0.2mm to 0.3mm, for example, in some embodiments, the thickness of the protective layer 110 may be 0.2mm, 0.25mm, 0.28mm, or 3 mm. The thickness of the adhesive layer 140 may be 0.01mm to 0.05 mm. For example, in some embodiments, the thickness of the adhesive layer 140 can be 0.01mm, 0.025mm, or 0.05 mm.

The thickness of the planar release layer 120 may be 0.05mm to 0.15mm, for example, in some embodiments, the thickness of the planar release layer 120 may be 0.05mm, 0.1mm, or 0.15mm, and the thickness of the curved edge release layer 130 is consistent with the thickness of the planar release layer 120. The planar release layer 120 and the arc-shaped release layer 130 may be made of PET (Polyethylene terephthalate), TPU (Thermoplastic polyurethane elastomer rubber), and other materials, and the PET material and the TPU material have good toughness and tensile resistance, and also have good sealing performance, so that gas and water vapor can be prevented from entering the adhesive layer 140.

In this embodiment, the curved screen protection film 100 may further include a plurality of labels, and the plurality of labels are respectively connected to the planar release layer 120 and the arc edge release layer 130. As an example, the plurality of labels includes a first label adhered to the planar release layer 120 and a second label adhered to the arcuate release layer 130 such that the planar release layer 120 and the arcuate release layer 130 can be easily torn off.

Fig. 3 is a schematic cross-sectional view of a curved-surface screen protection film and a curved-surface screen according to another embodiment of the present disclosure, as shown in fig. 3, the thickness of the arc-edge release layer 130 may be increased from the joint of the arc-edge release layer 130 and the planar release layer 120 to the edge of the arc-edge release layer 130 until the thickness is equal to the thickness of the planar release layer 120. Therefore, the curved edge release layer 130 can play a transitional role, and the protective layer 110 is not easy to generate undesirable phenomena such as indentation and wrinkle at the edge position of the curved edge release layer 130 (see fig. 4 and 5 in detail).

Meanwhile, the thickness of the arc edge release layer 130 is gradually increased until the thickness of the arc edge release layer is equal to that of the planar release layer 120, so that the thickness of the curved screen protection film 100 is substantially uniform, and the curved screen protection film is convenient to package and store.

In some embodiments, the thickness of the arc edge release layer 130 may also increase from the joint of the arc edge release layer 130 and the planar release layer 120 toward the edge of the arc edge release layer 130, and maintain the increasing trend until the edge of the arc edge release layer 130.

Referring to fig. 2 and fig. 6, the arc-shaped release layer 130 may include a first arc-shaped release sub-layer 132, a connection release sub-layer 133, and a second arc-shaped release sub-layer 134 sequentially disposed around the edge of the planar release layer 120, the connection release sub-layer 133 is disposed between the first arc-shaped release sub-layer 132 and the second arc-shaped release sub-layer 134, and the planar release opening 131 is disposed between the first arc-shaped release sub-layer 132 and the second arc-shaped release sub-layer 134 and is opposite to the connection release sub-layer 133.

In the process of pasting the protective layer 110, if bad phenomena such as bubbles appear, the protective layer 110 can be torn off and attached again by selecting the first arc edge from the type sublayer 132, connecting from the type sublayer 133 and the second arc edge from one of the type sublayer 134 according to the position of the bubbles, so that the film pasting operation is facilitated.

The width of the first arc edge release sub-layer 132 and the second arc edge release sub-layer 134 can be less than one third of the sum of the widths of the plane release layer 120 and the arc edge release layer 130, so that the protection layer 110 can be more conveniently adhered. The specific size can be adjusted adaptively according to the screen to be pasted with the film. The width directions of the first arc edge release sub-layer 132 and the second arc edge release sub-layer 134 are consistent with the width direction of the screen to be laminated.

The width of the connection release sublayer 133 can be adaptively adjusted according to the screen to be laminated. For example, when the screen to be laminated is a hyperboloid display screen, the connection release layer 133 only needs to have a sufficient width to ensure that the screen is not broken by pulling. When the screen to be filmed is a three-curved-surface display screen or a four-curved-surface display screen, the width of the connecting release sublayer 133 may be adapted to the arc-edge portion of the screen to be filmed. Wherein, the width direction of the connection release layer 133 is consistent with the length direction of the screen to be filmed.

In this embodiment, first arc limit is from type sublayer 132, connect from type sublayer 133 and second arc limit from type sublayer between 134 can integrated into one piece, connect to connect from type sublayer 133 to connect in first arc limit from type sublayer 132 and second arc limit from type sublayer 134 promptly to can once only tear first arc limit from type sublayer 132, connect from type sublayer 133 and second arc limit from type sublayer 134, need not to relapse multiple operation, simplified the pad pasting process. In some embodiments, the planar release layer 120 and the arc-edge release layer 130 can be directly cut out from one release film by laser cutting, so that the manufacturing is convenient and fast.

In some embodiments, the connection release sublayer 133 can also be respectively spliced with the first arc edge release sublayer 132 and the second arc edge release sublayer 134, namely, the connection release sublayer 133 is respectively in clearance fit with the first arc edge release sublayer 132 and the second arc edge release sublayer 134, so that the first arc edge release sublayer 132, the connection release sublayer 133 and the second arc edge release sublayer 134 can be selectively torn according to actual requirements, and the operation is flexible.

Referring to fig. 7 and 8, in the present embodiment, the curved screen protection film 100 further includes a bar 170, the planar release layer 120 includes a first end 121 and a second end 122 opposite to each other, the first end 121 faces the planar release layer peeling opening 131, the bar 170 is connected to the first end 121 through the planar release layer peeling opening 131 or the bar 170 is connected to the second end 122. When the film is pasted, the curved-surface screen protection film 100 can be positioned on the screen in advance, and after the positioning, the pulling strip 170 drives the planar release layer 120 to tear off the adhesive layer 140, so that the planar release layer 120 is conveniently uncovered, and the position of the pasted film is accurate.

The pull strip 170 extends from the first end 121 to the second end 122 and is stacked with the planar release layer 120; alternatively, the pull strip 170 extends from the second end 122 to the first end 121 and is stacked with the planar release layer 120. That is, the pull-string 170 may be stacked on the side of the planar release layer 120 away from the protective layer 110, which facilitates storage and packaging of the curved screen protective film 100.

In some embodiments, the pull-string 170 may be integrally formed with the planar release layer 120, and the first end 121 or the second end 122 of the planar release layer 120 is bent to form the pull-string 170, so as to simplify the manufacturing process. Brace 170 may also be attached to first end 121 or second end 122 by welding, bonding, or the like. When the bar 170 and the planar release layer 120 are integrally formed, the thickness of the bar 170 and the planar release layer 120 are equal. When the pull-string 170 is connected to the first end 121 or the second end 122 by welding, bonding, etc., the pull-string 170 may be equal to or different from the thickness of the planar release layer 120. For example, riblets 170 may be 0.1mm to 0.2mm thick, which have sufficient tensile strength to avoid snapping.

The length of the pull-string 170 may be greater than the length of the planar release layer 120 so that the pull-string 170 may protrude out of the first end 121 or the second end 122, facilitating pulling of the pull-string 170. Of course, the length of the pull-string 170 may also be less than or equal to the planar release layer 120, such that the pull-string 170 is located between the first end 121 and the second end 122 to reduce the overall length of the curved screen protection film 100 for packaging. The length direction of the bar 170 is the same as the extending direction of the bar 170, and the length directions of the planar release layer 120 and the bar 170 are the same.

The pull strip 170 may further include a dust-binding surface 171 opposite to the planar release layer 120, and the curved-surface screen protection film 100 further includes a pull strip release layer 150, where the pull strip release layer 150 is disposed on the dust-binding surface 171. The dust adhering surface 171 is used for adhering to a screen, so that impurities such as dust on the surface of the screen can be taken away through the dust adhering surface 171 when the pull strip 170 is pulled, and the film adhering quality is improved. The bracing release layer 150 is adhered to the dust-binding surface 171 and used for protecting the dust-binding surface 171 and protecting the dust-binding surface 171 from being polluted.

The pull strip 170 and the pull strip release layer 150 can be made of materials such as PET and TPU, the dust adhering surface 171 can be made by coating adhesives such as OCA optical adhesive and double-sided adhesive on the surface of the pull strip 170, and the surface of the pull strip 170, which is far away from the dust adhering surface 171, is a non-adhesive surface.

In some embodiments, the orthographic projection of the riblets 170 falls within the range of the planar release layer 120, i.e., the length of the riblets 170 is less than or equal to the length of the planar release layer 120 and the width of the riblets 170 is less than or equal to the width of the planar release layer 120. Therefore, the contact area of the dust sticking surface 171 and the screen can be reduced, the pulling of the pull strip 170 is facilitated, the material consumption of the pull strip 170 can be saved, and the cost is reduced. Here, orthographic projection refers to the projection produced by parallel projection lines perpendicular to riblets 170.

In other embodiments, the orthographic projection of the riblets 170 covers the planar release layer 120 and the curved edge release layer 130, i.e., the riblets 170 cover the planar release layer 120 and the curved edge release layer 130. This can increase the contact area between the dust-adhering surface 171 and the screen, thereby improving the cleaning effect.

In this embodiment, the curved screen protection film 100 further includes a positioning layer 160, and the positioning layer 160 is attached to a side of the protection layer 110 away from the adhesive layer 140. The positioning layer 160 includes a protrusion 161, the protrusion 161 is provided with a positioning hole 162, and an orthographic projection of the positioning hole 162 falls outside the protection layer 110. Wherein, the orthographic projection refers to the projection generated by the parallel projection lines perpendicular to the positioning layer 160.

The positioning layer 160 may further include a body portion 163, and the shape of the body portion 163 is identical to the shape of the protective layer 110. The protrusion 161 is provided on the body 163, and the shape of the protrusion 161 may be rectangular, semicircular, trapezoidal, or the like. The positioning hole 162 is used for matching with a film pasting positioner in the related art to realize the fast alignment between the curved-surface screen protective film 100 and the screen in the film pasting process, and realize the efficient film pasting. After the protective layer 110 is adhered and fixed on the screen, the positioning layer 160 is torn off from the protective layer 110, and the film pasting is completed. The positioning layer 160 may also be disposed such that the protective layer 110 is not scratched during storage and film application. The adhesion between the positioning layer 160 and the protective layer 110 is less than the adhesion between the adhesive layer 140 and the screen, ensuring that the protective layer 110 is not torn from the screen during the tearing of the positioning layer 160. For the specific structure of the film sticking positioner, reference may be made to the prior art, and details thereof are not repeated herein.

The positioning layer 160 may be made of PET, which can prevent gas and water vapor from entering the protection layer 110, and provide good protection for the protection layer 110.

The positioning layer 160 may have a thickness of 0.05mm to 0.15 mm. For example, in some embodiments, the thickness of the protective layer 110 may be 0.05mm, 0.07mm, 0.1mm, 0.15mm, and the like.

The film sticking process of the curved surface screen protection film 100 provided by the embodiment is as follows:

the related film sticking positioner is installed on an electronic product to be stuck with a film, the curved-surface screen protection film 100 is fixed on the film sticking positioner through the matching of the positioning hole 162 and the film sticking positioner, and the alignment of the curved-surface screen protection film 100 and a screen is realized. After the position of the curved screen protection film 100 is positioned, the pull-tab release layer 150 is torn to attach the pull-tab 170 to the screen. Then the pull strip 170 is torn, the screen is cleaned in the process of tearing the pull strip 170, the planar release layer 120 is driven to be torn from the protective layer 110, and the exposed area of the protective layer 110 can be adhered to the screen. If the bonding effect is not good, and the bad phenomena such as air bubble residue and the like occur, the protective layer 110 can be torn off and bonded again until no bad phenomena occur. The curved edge release layer 130 is then torn to adhere the remaining portion of the protective layer 110 to the screen. Finally, the positioning layer 160 is torn off from the protection layer 110, and the film is completed.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a curved surface screen protection film which characterized in that includes:

the adhesive layer comprises a first adhesive surface and a second adhesive surface which are deviated from each other;

the protective layer is arranged on the first bonding surface;

the plane release layer is arranged on the second bonding surface; and

the arc limit is from the type layer, the arc limit from the type layer set up in the second face of bonding, just the arc limit from the type layer with the plane is from the type layer concatenation, and centers on the plane is from the edge setting on type layer, the arc limit is equipped with the plane from the type layer and peels off the opening.

2. The curved screen protective film according to claim 1, wherein the curved edge release layer comprises a first curved edge release type sub-layer, a connecting release type sub-layer and a second curved edge release type sub-layer sequentially disposed around an edge of the planar release layer, and the planar release layer peeling opening is located between the first curved edge release type sub-layer and the second curved edge release type sub-layer and is disposed opposite to the connecting release type sub-layer.

3. The curved screen protective film of claim 2, wherein the connecting release sub-layer, the first arc edge release sub-layer and the second arc edge release sub-layer are integrally formed.

4. The curved screen protection film of claim 2, wherein the connecting release sub-layer is respectively spliced with the first arc edge release sub-layer and the second arc edge release sub-layer.

5. The curved screen protection film of any one of claims 1-4, further comprising a pull strip, wherein the planar release layer comprises opposing first and second ends, the first end facing the planar release layer stripping opening, the pull strip connected to the first end through the planar release layer stripping opening; or, the brace is connected to the second end.

6. The curved screen protection film of claim 5, wherein the riblets extend from the first end to the second end and are disposed in a release stack with the planar surface; or the brace extends from the second end to the first end and is arranged in a release stacking mode with the plane.

7. The curved screen protection film of claim 5, wherein the pull-tab comprises a dust-binding surface disposed opposite the planar release layer, and wherein the curved screen protection film further comprises a pull-tab release layer disposed on the dust-binding surface.

8. The curved screen protective film of claim 5, wherein an orthographic projection of the riblets is located within the range of the planar release layer; or the like, or, alternatively,

the orthographic projection of the brace covers the plane release layer and the arc edge release layer.

9. The curved screen protective film of claim 1, further comprising a positioning layer adhered to a side of the protective layer facing away from the adhesive layer; the positioning layer comprises a protruding portion, the protruding portion is provided with a positioning hole, and the orthographic projection of the positioning hole is located outside the protective layer.

10. The curved screen protective film of claim 1, further comprising a plurality of tabs, the plurality of tabs being coupled to the planar release layer and the arcuate release layer, respectively.

Images